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Search for "RCWA" in Full Text gives 7 result(s) in Beilstein Journal of Nanotechnology.
Double-layer symmetric gratings with bound states in the continuum for dual-band high-Q optical sensing
Beilstein J. Nanotechnol. 2022, 13, 1408–1417, doi:10.3762/bjnano.13.116
- analysis (RCWA) [40][41] is used to design the structure of the device and analyze the spectral information, which is combined with the finite element method (FEM) [42] to compute the complex eigenfrequencies. In order to investigate the resonance properties of dielectric gratings, we used here a
- the Q-factor is lower at this time. Therefore, the evolution of single and double resonances can be controlled by changing the spacing of RDGs. Moreover, changing the grating spacing allows the emergence of BIC. The reflection spectra calculated using RCWA when α = 0.1, 0.35, 0.55, 0.75 are given in
- the reflection spectra at different cavity lengths h by using RCWA. On the one hand, the two modes start to evolve into one mode when α > 0.5, and on the other hand, a smaller α value can ensure a higher Q-factor. Therefore, we fixed α = 0.15, and studied the reflection spectra for different cavity
Tunable high-quality-factor absorption in a graphene monolayer based on quasi-bound states in the continuum
Beilstein J. Nanotechnol. 2022, 13, 675–681, doi:10.3762/bjnano.13.59
- ) are obtained from reflection spectra R(λ) and transmission spectra T(λ) through A(λ) = 1 − R(λ) − T(λ), where, R(λ) and T(λ) are calculated by employing the rigorous coupled wave analysis (RCWA) method [57][58]. Clearly, a sharp strong resonant absorption peak is observed at a wavelength of 7908.03 nm
Performance analysis of rigorous coupled-wave analysis and its integration in a coupled modeling approach for optical simulation of complete heterojunction silicon solar cells
Beilstein J. Nanotechnol. 2018, 9, 2315–2329, doi:10.3762/bjnano.9.216
- boost their conversion efficiency. Reliable and accurate simulation tools are required to design and optimize the individual structures and complete devices. In the first part of this paper, we analyze the performance of rigorous coupled-wave analysis (RCWA) for accurate three-dimensional optical
- simulation of solar cells, in particular heterojunction silicon (HJ Si) solar cells. The structure of HJ Si solar cells consists of thin and thick layers, and additionally, micro- and nano-textures are also introduced to further exploit the potential of light trapping. The RCWA was tested on the front
- with microtextures, and for simulations of complete HJ Si cells, we propose a coupled modeling approach (CMA), where the RCWA is coupled with raytracing and the transfer matrix method. By means of CMA and nanotexture optimization, we show the possible benefits of nanotextures at the front interface of
Two-dimensional photonic crystals increasing vertical light emission from Si nanocrystal-rich thin layers
Beilstein J. Nanotechnol. 2018, 9, 2287–2296, doi:10.3762/bjnano.9.213
- measurements are supported by the output of our RCWA simulation. Figure 3c,d also shows the reflectance as a function of the incident angle simulated for the square-lattice and hexagonal-lattice PhCs with a = 525 nm and a = 600 nm, respectively, and hPhC2. The simulated graphs show leaky-mode band diagrams of
Light extraction efficiency enhancement of flip-chip blue light-emitting diodes by anodic aluminum oxide
Beilstein J. Nanotechnol. 2018, 9, 1602–1612, doi:10.3762/bjnano.9.152
- typical light output power–current–voltage (L–I–V) characteristics of the LEDs with and without AAO structures. The AAO structures enhance the LEE of LEDs but do not change the L–I–V properties. Rigorous coupled-wave analysis We used the rigorous coupled-wave analysis (RCWA) to verify our hypothesis and
- to clearly explain the reduction in total reflectivity and the existence of the surface plasmon wave in the samples. RCWA is a semianalytical method in computational electromagnetics that is typically applied to solve scattering from periodic dielectric structures [46]. Figure 9a shows the sample
- reflected by the surface roughness of LEDs. RCWA analysis indicated that surface plasmon waves are not involved in LEE enhancement. Experimental To produce a typical LED chip with a single-sided PSS, InGaN/GaN MQW LEDs were grown on c-plane (0001)-oriented PSSs using a metal–organic chemical vapor
High-contrast and reversible scattering switching via hybrid metal-dielectric metasurfaces
Beilstein J. Nanotechnol. 2018, 9, 460–467, doi:10.3762/bjnano.9.44
- important step towards tunable flat optics. Methods Here, we study the transmission properties of the nanostructures using rigorous coupled-wave analysis (RCWA) method [49][50] which has been widely used for modelling periodic optical structures due to its fast converging and accurate far-field calculations
A top-down approach for fabricating three-dimensional closed hollow nanostructures with permeable thin metal walls
Beilstein J. Nanotechnol. 2017, 8, 1231–1237, doi:10.3762/bjnano.8.124
- . The origin of such a peak was studied through rigorously coupled wave analysis (RCWA) simulations (Experimental section). Figure 3b shows the measured and calculated reflectance of a hollow Al nanopillar array. It is seen that the calculated curve agrees well with the measured graph, exhibiting a
- maximum at λ ≈ 700 nm. This supports the fact that no SU-8 material remains inside the nanocages and confirms the appropriateness of numerical modelling to analyze the measured optical response of the structure. Cross-sectional distributions (at y = 0) of the RCWA-calculated x-component of the electric
- square lattice of hollow nanocages were calculated by the rigorously coupled wave analysis (RCWA) method (from Rsoft Components Design Suite). Figure 6 shows a schematic cross-sectional view of the modelled hollow nanocage unit cell. It consists of the superposition of a hollow cylinder (diameter dc and
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